·This op-code calls a procedure
that is bound statically to the main program.

·It is a static call.

·The operation extender
‘D’ may be used to include operational descriptors (information about each parameter to
be passed to the called procedure.).

·If there is any error
in this call operation then the error can be traced with operator extender ‘E’
and LO level indicator which turns on in case of any error.

·If we don’t want to use
error indicator with operator extender ‘E’ even then we can trace the error by
using the built-in function %ERROR and %STATUS. For more information see chapter File and Program exception.

·If the called program
returns with LR indicator on, the calling program can trace that will EQ indicator.